The Collaborative International Dictionary of English v.0.48:

Sous \Sous\, Souse \Souse\ (F. s[=oo]; colloq. Eng. sous), n.
   A corrupt form of Sou. [Obs.] --Colman, the Elder.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, n. [OF. sausse. See Sauce.] [Written also
   souce, sowce, and sowse.]
   1. Pickle made with salt.
      [1913 Webster]

   2. Something kept or steeped in pickle; esp., the pickled
      ears, feet, etc., of swine.
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            And he that can rear up a pig in his house,
            Hath cheaper his bacon, and sweeter his souse.
                                                  --Tusser.
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   3. The ear; especially, a hog's ear. [Prov. Eng.]
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   4. The act of sousing; a plunging into water.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, n.
   A drunkard. [slang]
   [PJC]

The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, v. t. [imp. & p. p. Soused; p. pr. & vb. n.
   Sousing.] [Cf. F. saucer to wet with sauce. See Souse
   pickle.]
   1. To steep in pickle; to pickle. "A soused gurnet." --Shak.
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   2. To plunge or immerse in water or any liquid.
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            They soused me over head and ears in water.
                                                  --Addison.
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   3. To drench, as by an immersion; to wet throughly.
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            Although I be well soused in this shower.
                                                  --Gascoigne.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, adv.
   With a sudden swoop; violently. --Young.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, v. i. [Probably fr. OF. sors, p. p. of sordre to
   rise, and first used of an upward swood, then of a swoop in
   general, but also confused with Souse, v. t. See Source.]
   To swoop or plunge, as a bird upon its prey; to fall
   suddenly; to rush with speed; to make a sudden attack.
   [1913 Webster]

         For then I viewed his plunge and souse
         Into the foamy main.                     --Marston.
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         Jove's bird will souse upon the timorous hare. --J.
                                                  Dryden. Jr.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, v. t.
   To pounce upon. [R.]
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         [The gallant monarch] like eagle o'er his serie towers,
         To souse annoyance that comes near his nest. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Souse \Souse\, n.
   The act of sousing, or swooping.
   [1913 Webster]

         As a falcon fair
         That once hath failed or her souse full near.
                                                  --Spenser.
   [1913 Webster]

WordNet (r) 3.0 (2006):

souse
    n 1: a person who drinks alcohol to excess habitually [syn:
         alcoholic, alky, dipsomaniac, boozer, lush,
         soaker, souse]
    2: pork trimmings chopped and pickled and jelled
    3: the act of making something completely wet; "he gave it a
       good drenching" [syn: drenching, soaking, souse,
       sousing]
    v 1: cover with liquid; pour liquid onto; "souse water on his
         hot face" [syn: drench, douse, dowse, soak, sop,
         souse]
    2: immerse briefly into a liquid so as to wet, coat, or
       saturate; "dip the garment into the cleaning solution"; "dip
       the brush into the paint" [syn: dunk, dip, souse,
       plunge, douse]
    3: become drunk or drink excessively [syn: souse, soak,
       inebriate, hit it up]
    4: cook in a marinade; "souse herring"

Moby Thesaurus II by Grady Ward, 1.0:

123 Moby Thesaurus words for "souse":
   baptism, baptize, bathe, bender, booze, booze up, boozehound,
   boozify, bottle sucker, brannigan, brew, brewing, bum, burial,
   bury, bust, chug, chug-a-lug, crock, deluge, dip, dipping, douche,
   douse, dousing, drench, drenching, drouk, drown, drunk, duck,
   ducking, dunk, dunking, elbow bender, engulf, engulfment, flush,
   fuddle, ginhound, hooch hound, imbrue, imbruement, imbue,
   imbuement, immerge, immergence, immerse, immersion, impregnate,
   impregnation, infiltrate, infiltration, infuse, infusion, inject,
   injection, inundate, inundation, jag, lave, leach, leaching,
   liquor, liquor up, lixiviate, lixiviation, lush, lusher, macerate,
   maceration, merge, overtake, overwhelm, percolate, percolation,
   permeate, permeation, pickle, plaster, plunge in water, pollute,
   pulping, raise the elbow, rinse, rum hound, rummy, saturate,
   saturation, seethe, seething, sink, sinking, soak, soakage,
   soaking, sodden, sop, sopping, sousing, sponge, steep, steeping,
   stew, stone, submerge, submergence, submerse, submersion, swack,
   swig, swill, swillbelly, swillbowl, swillpot, tank up, tear,
   tipsify, wash, waterlog, wet, whelm, wino